Roofing-strip.



narran srarns pariente onirica.

FREDERICK C. OVERBURY, OF NEW YORK, N` Y., ASSIGNOR TO FLINTKOTE MANUFACTURING COMPANY, OF RUTHERFORD, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Rcornes-saque Patented Dec. 3l, 1907.

y Application filed VApril 2. 1907. Serial No. 365.926.Y

To all whom it may concern.'

Be it known that I, FRnDERioK C. OVER- BURY, of New York, in the county of New York and State of New York,l have invented certain new and `useful Improvements in Roofing-Strips, of which the following is a specification.

This invention relates to roofing strips composed of fiexible 'waterproof material of indeterminate length adapted to be-'laid inl horizontal courses on a roof or other surface, the strips being so arran ed that thelower edge portion of each vstrip 1s exposed while its upper edge portion is covered bythe lower .edge portion of the strip above it. The sheet material, of which flexible waterproof roofing strips are made, is relatively thin, so that the exposed portions of the strips, made as here'- tofore from a single thickness of\said material, do not possess suflicient thickness to make them desirably conspicuous and give the roof or other surface the desired diversified effect, particularlywhen the exposed edge of thestrip is serrated to give a scalelike effect similar to that a roofing strip, the exposed portion of which 1s thickerthan its opposite or covered portion, so that the exposed.portionpresents a thicker and more conspicuous edge, and is stiffer and. better adapted to resist elemental and'other action tending to warp or bend it, particularly when the strip is serrated at its lower edge. i A

To this end, the invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying' drawings, Figure 1 represents a view of the outer side of a portion of a roofing strip embodying my invention. Fig. 2 represents a view ,of the iiiner side of the said portion. Fig. Srepresents a section on line 3-8 of Fig. 1 Fig. 4 represents a perspective view.. Fig. 5 represents a sectional View showing a plurality of strips laid on a roof. a blank from which two strips may be made.

The same letters of reference indicate the same parts in all the figures.

My improved ro'oiin strip is composed of first 'a body layer 12', w' 'ch is a single strip oflany suitable flexible vsheet material of the thickness ordinarily used for roofing, the width of the layer 12 being the same as that produced by point Fig. 6 represents ai portionof of the completed strip; and, secondly, a'reinforcing layer 13, which is narrower than the body layer and is secured to the under side of the latter, the reinforcin layer extending from one edge of the body Iayer partly across the same. The reinforcing layer may be a relatively narrow strip of the same sheet material as the body layer, or it may be of different material, and of'the saine or different thickness. I prefer to secure the reinforcing l. yer to the body layer by a sticky coating applied to the body layer before the app1ication of theA reinforcing layer thereto. The

Vwidth of the reinforcing layer should be such that it will extend across substantially all of the' exposed ortions of the strip, substantially all of t e curved portionsof the strip` being of single thickness.`

The thickened edge portion is preferablyserrated as shown, the depth of the serrations being such that theyare within the area covered by the reinforcing layer. -In practice, the serrated strips are usually laid with the points or. outer ends of the tongues `of one strip coinciding vwith the inner ends of the recesses of the next strip below, thus giving the roof a diversified effect like that of pointed shingles. This effect is heightened by the increased thickness imparted to the exposed edge. by the reinforcing strip. Moreover the exposed portion of the strip, including the tongues, is stiffened and strengthened by the reinforcing strip, so that the tongues are not 'liable to be bent outwardly or war ed.

In making the improved strips, prefer to first produce a b lank of double the wldth of a strip, `vthis blank being composed of a body layer 120 and a narrower reinforcing layer 130, secured to the central portion of the body layer and having its edges located with- '.in or between the 'edges of the body layer.

This blank is longitudinally'divided along its central reinforced portion and is -thus converted into two roofing strips each of which is thickened at one edge. The division'is along a'Zig-.za'g line ifserrated strips are to be produced.A

I claim: l. fr roofing strip of flexible material and having a serrated edge, the stri Acomprising a body layer of tlie full width of t e strlp, and a .narrower reinforcing layer attached to the `under side lof the body layerand extending' from the'serrated edge partly across the strip.. 2.' A roofing strip of flexible material, cornstri inforcing strip. e

posed of a body layer of the full width ofthe tac ed to one side of the body layer andeX- tending partly across` the same, the reinforced portion of the strip beingserrated.

3. rA roofing strip-0f flexible material, coniposed of `a body layer 0f the ullwidth of the stri and a narrower reinforcing layer at-l tac ed to one side of. the body layer and extending partly across the same, the reinforced portion .of the strip having serrations which are entirely within the width of the reand a narrower reinforcing layer atlongitudinally divisible 'moll' ing strip blank; composed of a body' layer of theull width of the blank and a narrower reinforcing layer attached to one side of the body layer and' having its edges 'within the edges of the body layer, said blank being adapted to be divided into a lurality of roofing strips each having one e ge thicker than the other.

In testimony whereof I have .aixed lmy signature, in presence of two witnesses.

FREDERICK C. OVERBURY. Witnesses: A

` CHAs. E.`ToLHURsT,

EDWIN A. H. VAN RIZER.- 

